Add Vuex support to vue/no-unused-properties (#2276)

Co-authored-by: Flo Edelmann <git@flo-edelmann.de>

Author: fuale

lib/rules/no-unused-properties.js

@@ -268,6 +268,7 @@ module.exports = {
       }
       return container
     }
+
     /**
      * @param {string[]} segments
      * @param {Expression} propertyValue
@@ -350,6 +351,7 @@ module.exports = {
           ) {
             continue
           }
+
           if (propertyReferences.hasProperty(property.name)) {
             // used
             if (
@@ -453,8 +455,84 @@ module.exports = {
         }
       }),
       utils.defineVueVisitor(context, {
-        onVueObjectEnter(node) {
-          const container = getVueComponentPropertiesContainer(node)
+        /**
+         * e.g. `mapMutations({ add: 'increment' })`
+         * @param {Property} node
+         * @param {VueObjectData} vueData
+         */
+        'CallExpression[callee.name=/^(mapMutations|mapActions)$/][arguments] ObjectExpression Property'(
+          node,
+          vueData
+        ) {
+          const container = getVueComponentPropertiesContainer(vueData.node)
+
+          container.properties.push({
+            type: 'array',
+            name: utils.getStaticPropertyName(node),
+            groupName: 'methods',
+            node
+          })
+        },
+
+        /**
+         * e.g. `mapMutations(['add'])`
+         * @param {Literal} node
+         * @param {VueObjectData} vueData
+         */
+        'CallExpression[callee.name=/^(mapMutations|mapActions)$/][arguments] ArrayExpression Literal'(
+          node,
+          vueData
+        ) {
+          const container = getVueComponentPropertiesContainer(vueData.node)
+
+          container.properties.push({
+            type: 'array',
+            name: utils.getStringLiteralValue(node),
+            groupName: 'methods',
+            node
+          })
+        },
+
+        /**
+         * e.g. `mapState({ count: state => state.todosCount })`
+         * @param {Property} node
+         * @param {VueObjectData} vueData
+         */
+        'CallExpression[callee.name=/^(mapState|mapGetters)$/][arguments] ObjectExpression Property'(
+          node,
+          vueData
+        ) {
+          const container = getVueComponentPropertiesContainer(vueData.node)
+
+          container.properties.push({
+            type: 'array',
+            name: utils.getStaticPropertyName(node),
+            groupName: 'computed',
+            node
+          })
+        },
+
+        /**
+         * e.g. `mapState(['count'])`
+         * @param {Literal} node
+         * @param {VueObjectData} vueData
+         */
+        'CallExpression[callee.name=/^(mapState|mapGetters)$/][arguments] ArrayExpression Literal'(
+          node,
+          vueData
+        ) {
+          const container = getVueComponentPropertiesContainer(vueData.node)
+
+          container.properties.push({
+            type: 'array',
+            name: utils.getStringLiteralValue(node),
+            groupName: 'computed',
+            node
+          })
+        },
+
+        onVueObjectEnter(node, vueNode) {
+          const container = getVueComponentPropertiesContainer(vueNode.node)
 
           for (const watcherOrExpose of utils.iterateProperties(
             node,
@@ -495,8 +573,10 @@ module.exports = {
               )
             }
           }
+
           container.properties.push(...utils.iterateProperties(node, groups))
         },
+
         /** @param { (FunctionExpression | ArrowFunctionExpression) & { parent: Property }} node */
         'ObjectExpression > Property > :function[params.length>0]'(
           node,